original files of m241

vxworks-6.9/target/h/dma.h

@@ -0,0 +1,58 @@
+/* dma.h - DMA (direct memory access) header */
+
+/* Copyright 1984-1992, 2010 Wind River Systems, Inc. */
+
+/*
+modification history
+--------------------
+01f,29apr10,pad  Moved extern C statement after include statements.
+01e,22sep92,rrr  added support for c++
+01d,04jul92,jcf  cleaned up.
+01c,26may92,rrr  the tree shuffle
+01b,04oct91,rrr  passed through the ansification filter
+		  -fixed #else and #endif
+		  -changed copyright notice
+01a,20dec90,jcc  written.
+*/
+
+#ifndef __INCdmah
+#define __INCdmah
+
+#include "vxWorks.h"
+#include "private/semLibP.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct dmaCtrl		/* DMA_CTRL - generic DMA controller info */
+    {
+    SEMAPHORE ctrlMutexSem;	/* semaphore for exclusive access */
+    SEMAPHORE ctrlSyncSem;	/* semaphore for waiting on I/O interrupt */
+    BOOL intOnCompletion;	/* whether ctrl can interrupt when done */
+    VOIDFUNCPTR dmaReset;	/* function for resetting the DMA bus */
+    FUNCPTR dmaTransact;	/* function for managing a DMA transaction */
+    FUNCPTR dmaBytesIn;		/* function for DMA input */
+    FUNCPTR dmaBytesOut;	/* function for DMA output */
+    FUNCPTR dmaBusPhaseGet;	/* function returning the current bus phase */
+    UINT maxBytesPerXfer;	/* upper bound of ctrl. tansfer counter */
+    UINT clkPeriod;		/* period of the controller clock (nsec) */
+    int dmaPriority;		/* priority of task when doing DMA I/O */
+    int dmaBusPhase;		/* current phase of DMA */
+    } DMA_CTRL;
+
+/* structure to pass to ioctl call to execute a DMA command */
+
+typedef struct  /* DMA_TRANSACTION - information about a DMA transaction */
+    {
+    UINT8 *srcAddress;		/* address of source data buffer */
+    UINT8 *destAddress;		/* address of destination data buffer */
+    int dataLength;		/* length of data buffer in bytes (0=no data) */
+    UINT8 statusByte;		/* status byte returned from target */
+    } DMA_TRANSACTION;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __INCdmah */